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uiten items anni titre u (a Leners Parent No. 78,356, @zaad May 26,1868.

IMPROVEMENT IN PERPETAL CALENDARS,

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` T0 ALL WHOM IT MAY CONCERN:

Be it known that ISIME 0N L. BARINDS, of St. Joseph, in the county ofBuchanan, inthe State of Missouri,

' have invented. an Improved Perpetual Calendar; and I do hereby declarethat the following is a full and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a. part of this specification, in which- Figure 1is a plan view of my calendar.

Figures 2 and 3, a view oi' the device which operates'the dials. I

This invention relates to a newmethod ofascertaining the day of the weekwhen the month and year are given, and in the use oi novel `means forturning the dials.

In ordor to givenl correct understanding of my invention, I have markedcorresponding parts with similar letters, and will now give a detaileddescription. I

A., drawing represents the front of aeommon picture-frame, whichsupports the calendar and the oper ating arrangements. 'An out'ercard-board, E, is made fast to said frame independently of the dials BD, and has a. series of figures and letters marked on it, as will behereinafter described.

A dial, B; rawinglA, is placed inside of the card-board E, and made fastte'a screw-wheel F, gs. 2 and 3, drawing B, "in order that said dial maybe turned around by means of a screw, H, having a knob, K, projeciingoutside ofthvframdill, shown vby a broken" section. The small dial D ismade to project through the card-board E, :andlvis fastened to a post,L, that-it may turn independently of the dial B, when operated upon bya, grevv wh' eel, G, and yscrew- I, made similar to H.' This arrangement'is quite simple, yet provides very convoriientmeans' operating thodials.

'The letters andiigures marked on the face of the card-board consist,first, of two tables, Y' X, having seven columns of fig-urea' each, thecolumns maud' 7i, drawing A,being numbered 'from l to 28, inclusive. Thev:remainder-ei' thecolumns in table X are all together numbered from1709 to 1876, inclusive, and the balance of table Y from '11.877 to2044, this la'tterbingthe future scope of the calendar.- It also has themonths marked on it., The circle R vhas sevencolumns,of figures markedon it, as follows: Column P has the figures 1, 8, 15, 22, 29; column. O,2,- 9, 16,l 23,30; column U, 3,710, 1.7, 24, 31; column 1,'4, 11, 18,25; column S, 5, 12, 19, 26; column r, 6, 13, 20, 27;A coluinnfQ, .7,14, 21, 28.

The small diixl D is divided in seveuparts, and marked with lettersindicating the days .of a week. T- he inner dial B has the figuresfre'ml to 28 marked on its face near the periphery, and twenty-eightdivisions, in

which arc marked the days of the week, as seen at iig. 3; drawing B.

v *i I Operation.

The following examples will show how the calendar is Vto be worked to4find whatday of the week the .13th day of November, 1867, fell on.l'n'thc reference column, 1867 is placed opposite 19. Turn the dial Buntil the column :t9-appears in the space Y; this Vshows that the 1stday of November fell on Friday. Then turn dial D until Friday isopposite 1 on dial R, which shows that the 13th day fell on Wednesday.Again, to yfind-what day of the week the 4th day of March, 1877, willfull on. It will he seen by the reference table that 1877 is placedopposite 1 in column P. Bring` 1on dial B 'iutospaec Y', and it will beseen that the 1st of March falls on Thursday. Then turn dialD'untilThursday is opposite 1 OuR, and it will be seen that the 4th of' Mar'chfalls on Sunday.

Having thus described my device, what I claim, and desire to secure byLetters Patent, is-

1. The combination et' the cardboard E and dials D B, havingr lettersand figures marked on them, substantially as and for the purpose setforth. Y

2. The combination of screw-nhools F G, screws H I, and dials DB,substantially as .set fortn.

S. L. BARINDS.

Witnesses M. M. Rrrrunnaun, J. M. .BL/innemen,

